Home / 102,135.18-153,235.47-42,191.82

Finding the Fourth Proportional to 102,135.18, 153,235.47 and 42,191.82

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Solution

The fourth proportional to 102,135.18, 153,235.47 and 42,191.82 is: 63,301.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,135.18 : 153,235.47 = 42,191.82 : x
  2. Step 2: Convert to fraction form
    102,135.18/153,235.47 = 42,191.82/x
  3. Step 3: Cross multiply
    102,135.18x = 153,235.47 × 42,191.82
  4. Step 4: Simplify right side
    102,135.18x = 6,465,283,367.86
  5. Step 5: Solve for x
    x = 6,465,283,367.86/102,135.18
  6. Step 6: Final answer
    x = 63,301.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.